My first show was in May of 93 in a 2,200 seat theatre. My second was on July 15, the start of the summer tour on a stock car track dirtbowl at a county fairgrounds. That was the first show where Kuroda first used the "movers", a bunch of new light brand called Altstars, the laser and computer/motor controlled lights that spun around and made the light show the iconic look of Phish shows as "the fifth member of Phish".

Before that, the stage was only lit with the traditional "pars" or "cans", the stationary theatre lights with colored gel filters. (I believe that's when the vinyl backdrops designed by Mike's artist mother, the "Minkins" were also retired, because they didn't work well with the "movers" .

While not a musical innovation, per se, like the "hey" improvisational technique, I have to believe this dramatic change in the stagecraft helped propel Phish to the next level as an arena rocking act rather than theatre and small venue performers.